12603138 has 8 divisors (see below), whose sum is σ = 25206288. Its totient is φ = 4201044.

The previous prime is 12603133. The next prime is 12603161. The reversal of 12603138 is 83130621.

It is a sphenic number, since it is the product of 3 distinct primes.

12603138 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12603133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050256 + ... + 1050267.

It is an arithmetic number, because the mean of its divisors is an integer number (3150786).

Almost surely, 2^12603138 is an apocalyptic number.

12603138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12603138 is a wasteful number, since it uses less digits than its factorization.

12603138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100528.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12603138 is about 3550.0898580177. The cubic root of 12603138 is about 232.7159930594.

Adding to 12603138 its reverse (83130621), we get a palindrome (95733759).

The spelling of 12603138 in words is "twelve million, six hundred three thousand, one hundred thirty-eight".